Convert the polar equation to a rectangular equation.r = 
A. 9x2 + 8y2 + 6y - 9 = 0
B. 9x2 + 9y2 + 6x - 9 = 0
C. 8x2 + 9y2 + 6x - 9 = 0
D. 10x2 + 9y2 - 6x - 9 = 0
Answer: C
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Provide an appropriate response.Consider the curves corresponding to polar equations of the form 
where 
Explain how the graph changes as a changes. Identify any values of a for which the basic shape of the curve changes.
What will be an ideal response?
Simplify the rational expression.
A. 7x - 1
B. 
C. 7x2 - 30
D. 
Solve the right triangle. Express angles in decimal degrees.
B = 44°, a = 55.8
A. A = 46°, b = 57.8, c = 80.3 B. A = 46°, b = 53.9, c = 77.6 C. A = 44°, b = 40.1, c = 53.9 D. A = 44°, b = 57.8, c = 40.1
?The revenue R for a company selling x units is 
. Use differentials to approximate the change in revenue if sales increase from 
to 
style="vertical-align: middle;" data-wiris-created="true" /> units. ? A. ?48,000 dollars B. ?50,000 dollars C. ?45,000 dollars D. ?53,000 dollars E. ?60000 dollars